Astrobiologist Kevin Peter Hand is searching for life beyond Earth. Working at the Jet Propulsion Laboratory in Pasadena, he is designing instruments that will travel to Jupiter’s moon Europa to search for a possible subsurface ocean there that may support primitive forms of life. His work often takes him out of the lab to visit some of the world’s most forbidding environments⎯such as Antarctica and the deep sea⎯to investigate how microbes eke out a living under extreme conditions. Don’t miss this firsthand report on the search for real extraterrestrials.